<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>数组转化为字符串</title>
    <script>
        // 1. toString()
        var arr = [1,2,3]
        console.log(arr.toString());

        // 2. join(分隔符)
        console.log(arr.join());
        console.log(arr.join('-'));
        console.log(arr.join('&'));
    </script>
</head>
<body>
    
</body>
</html> 